The buffering effects of job embeddedness on negative shocks

Unpleasant events are a fact of organizational life. The way in which people respond to such events, however, varies. In the present study, we hypothesized and found that some individuals choose to respond to negative events in ways that helped the organization. Instead of withdrawing in an attempt to “get even” by reducing work outputs, these individuals improved their in-role and extra-role performance. The study examined the role that job embeddedness plays in creating this work enhancement reaction. Specifically, we discovered that on-the-job embeddedness helps reduce the impact of negative shocks on organizational citizenship and overall job performance. The findings of this study have important implications for both theory and practice.     

Amodal completion in bonobos

We trained two bonobos to discriminate among occluded, complete, and incomplete stimuli. The occluded stimulus comprised a pair of colored shapes, one of which appeared to occlude the other. The complete and incomplete stimuli involved the single shape that appeared to have been partially covered in the occluded stimulus; the complete stimulus showed the full shape, whereas the incomplete stimulus showed the same portion of the shape that was visible in the occluded stimulus. The correct response was to select the two-part occluded stimulus. Consistent with amodal completion, the bonobos committed a higher percentage of errors to the complete stimuli than to the incomplete stimuli. As well, the percentage of errors to the complete stimuli rose after repeated training with several different shapes. Extensive experience with two-dimensional images enhances amodal completion of partially occluded stimuli in bonobos.     

2型糖尿病的营养干预策略

2型糖尿病的发病率日益增加,已成为影响人类健康的主要疾病之一.糖尿病的高糖、高脂状态可使活性氧化物产生增多,造成氧化应激;氧化应激与糖尿病的发生与发展密切相关,通过联合补充抗氧化微量营养素VitE、VitC、Zn及Se,以及多选用含抗氧化物食品,可有效地降低氧化应激,从而阻止或延缓糖尿病病情的进展.     

Episodic effects on picture identification: implications for theories of concept learning and theories of memory

The effects of differences in study processing on free recall of picture names and on generalization in picture identification were investigated. Experience with degraded pictures produced poorer subsequent free recall of picture names than did naming intact pictures. For the test of picture identification, pictures that were identical to a studied picture, pictures that shared a name with a studied picture (same name), and new test pictures were presented, and the amount of clarification required to identify a picture was measured. Experience with degraded pictures produced better subsequent identification of identical test pictures but poorer later identification of same-name test pictures than did naming intact pictures. The importance of these episodic effects for theories of concept learning and theories of memory is discussed. It is argued that distinctions between memory systems (e.g., episodic-semantic) must be couched in terms of a theory of concept learning and that the data are inconsistent with a simple distinction.     

Same/different discrimination learning with trial-unique stimuli

A long-standing issue in same/different discrimination learning concerns the possible role of individual stimulus memory through repeated presentation. The aim of eliminating any effect of repetition prompted us to devise a new method for generating trial-unique stimuli. These stimuli were arrays of 16 mosaics, each containing 16 cells, which could be filled with 16 possible luminance levels. In Experiment 1, we successfully trained 4 pigeons with these trial-unique stimuli in a two-alternative forced choice same/different discrimination task to 80% correct-choice performance. We later conducted two tests that explored the nature of this discrimination and suggested that pigeons compared the mosaics in the arrays on the basis of their spatial configurations, not on the basis of lower level perceptual properties. In Experiment 2, college students responded similarly to the same sequence of training and testing. Our results suggest that pigeons and people may use similar mechanisms in relational discrimination learning.     

群际宽恕的影响因素

群际宽恕(Intergroup Forgiveness)是指对曾经侵犯过本群的外群所具有的报复感、愤怒感以及不信任感的减少, 有意识地去理解、接近对方群体, 并积极地参与到对方群体中去的一种心理过程。学界对影响群际宽恕的因素进行了深入的研究, 分析了低人性化、竞争受害性、群体认同、愤怒、共情、道歉以及群体接触7个因素对群际宽恕产生的影响作用; 同时, 以影响因素的研究结论为基础, 不同的学者提出了提升宽恕水平, 缓和群体关系的干预性建议。但是, 作为一个新的研究主题, 还需要深入探讨群际宽恕的内部过程机制, 积极建立符合本土文化的干预模型。     

Enhancing precision in the prediction of voluntary turnover and retirement

The present research examines the differential validity of the facets of organizational commitment and job embeddedness to predict who will reenlist or retire from a branch of the armed services. We tested hypotheses with survey data from 1839 enlisted personnel in the U.S. Air Force. For personnel facing the decision to reenlist or separate, continuance commitment and organizational job embeddedness predicted reenlistment. For those eligible to retire, affective and normative commitment as well as organizational job embeddedness predicted who would reenlist rather than retire. However, unlike previous studies, for both criteria (reenlistment and retirement), people who were more embedded in their communities were more likely to voluntarily leave. This finding identifies an important boundary condition for job embeddedness theory.     

Virtual reality cue reactivity assessment in cigarette smokers.

Drug craving has purportedly been linked to relapse and to substance use. For over two decades, cue reactivity has been a viable method to assess craving and physiological reactions to drug stimuli. However, traditional cue reactivity has faced the following limitations: austere situations or stimuli, lack of complex cues, lack of standardization, and limited generalization outside of the lab setting. In order to improve cue methodologies, a virtual reality (VR) nicotine cue reactivity assessment system (VR-NCRAS) was developed and tested in a controlled experimental trial. Ten nicotine dependent smokers were exposed to VR smoking cues and VR neutral cues in a standardized, timed, computer controlled experiment. Subjective craving and physiological responses were recorded and compared across VR-NCRAS stimuli. Subjective cigarette craving increased significantly and corresponding physiological reactivity was observed in response to VR smoking cues. VR neutral cues did not result in subjective or physiological changes consistent with craving. Implications of these findings on substance abuse research and treatment are discussed.